Rewinding machine



Apr. 17, 1923.

L. A. STRAUBEL REWINDING MACHINE Filed March 14 1922 3 Sheets-Sheet 2 Apr".y 17, 1923.

L. A. STRAU BEL REWINDING MACHINE Filed March 14, 1922 5 Sheets-Sheet 5 l LDUIS Atreuh EL I 7%/ Patented pr. 17, 1923.

UNITED STTl'fla LOUIS A. STRAUBEL, OF GREEN BAY, WSCONSIN, ASSIGNOR T0 STRAUBEL MACHINE COMPANY, GREEN Effi?, VVISCQNSIN.

applicati@ me@ March 14', laas.

To all fao/wm t 72mg/ concern Be it known that l, .Louis A. SrnAUnL, a citizen of the United States, and resident ot Green Bay, in the county ot Brown and State ot' l/Visconsin, have invented certain new and useful Improvements in Rewinding Machinesg and l do hereby declare that the following is a full, clear, and exact description ther-eet.

The invention is in n'iaohines for slitting, pei-toratino' and re winding paper oi' the type on which latent No. lid/501 was issued to il. C. Fogarty, September 2l, i915.

Machines 'liorrewindingniill rolls ol" paper into toilet rolls that are perforated to make sheets must be very sensitive on account of the periorations. ll or this reason, the coil spindles must revolve easily and the 'friction tor driving` them must have delicate adjustment to prevent breaking the paper in the perforations while it is being wound into rolls. breakage greatly incl-eas v`s the cost of production.

rllhe invention comprises, in addition to mechanism described in the above identified application, three pulleys having a belt running thereon, one ot the pulleys serving to move the belt. Resilient means is applied to anotherof the pulleys to tighten the belt. A, i'rame carrying three pulleys adapted to lrictionally engage one at a time with the belt and three core spindles adapted to be rotated by these pulleys, are provided. A pair of core frames are rotatably mounted on a shaft and carry the three pulleys and core spindles. A friction adjuster is provided, having a pulley adapted to Contact with the belt and means for moving thepulley and securing,- it in adjusted position, whereby it delects the belt suliciently to have a proper frictional engagement with one ot' the core spindle pulleys.

The core spindles have a squared end adapted to be received in a clutch rigid with one of the core pulleys and the other end or' the spindle is adapted to receive the end ot a pointed member which is carried by one or the core spindle frames. The pointed meinber is integral with a cone and a shatt, the cone contactingwith a series ot ball bearings suitably positioned by a cup contacting` with the wall of a cylindrical box and actuated by a helical spring to rdirectthe center into position to support the core spindle. The core spindle frames may be moved to prop- Serial No. 543,546.

erly position successive spindles to wind in 'the paper. lil'eans are provided to act in an automatic manner on the core spindle frames and hold them in proper position. "for the winding operation. rPhe rotation of a lever manually operates to release the automatic engaging means and advances the core spindle frames, when desired.

rllhe primary object oi the invention is the 'n'ovision of a construction by which ein treme delicacy ot the adjustment of the winding iliorce on the core spindle is acquired.

l/Vhile it is old to rotate a sha1" t by belt Yfriction, zuiplicant has adapted belt drive to machines having` u'lultiple core spindles 'and luought the adjusting lever to the side oiI the machine on which the operator is stationed.

A. teature the arrangement ol" parts, whereby one core may be shifted out of winding position without disturbing the mechanism for adjusting the ltrictional drive ot the core spindle.

Ball bearings have been used on rotating shafts, but applicants novel construction reduces friction to a very ininimuni. The pointed n'ieinber revolves with the core spindles and the cup and cone slide in the boi; oi' the oi the iframe and are held forward with a spring. This allows the core spindles to be taken out and replaced while the ball bearing: reduces the `friction caused by the wei eht ot the paper and spindles and also the end thrust oi the spring.

lt is apparent that the structure associated with `the ball bearing.` and the structure asso ciated with the pulley adapted to regulate the lrictioual Contact of the belt with the core spindle iiiulley, cooperate to produce a device especially sensitive in the rewindineg operation. The belt drive is adapted readily permit slippage ot contacting surfaces, so that extreme tension on the paper is not devclopcil and the `Qrjreat decrease in the triction prmjluced in the rotation or the core spindle is such that very little power is required to rotate the spindle. so that the tension on 'the paper being rewound may be ,O'iilatcd exactly by the pulley operating to uetlect th -i belt.

A.. :Further object ot' this invention is the ready and convenient manner of rotating; the core spindle frames. This may be done entirely by the movement of one hand. No

lwith. arm llt and a leg' 15.

longer is it necessary, as in the case of devices of the prior art, to unlock the trames with one hand and turn'them to a. proper position with the other. The use of merely one hand allows the operator to regulate the speed oit the machine at the same time that he alters the position oli the core spindle trame. On the advancement oili the frame to a proper position, an automatic locking,r thereof results, so that the traine is secured properly in position, yet is readily manipulable to put another core spindle into operation.

NVith the above and other objects in view whichl will appear as the description proceeds, my invention resides Ain the novel construction, combination and arrangement of parts substantially as hereinafter described and more jiarticularly dened by the appended claims, it being; understood that such changes in the precise embodiment oi'i the herein disclosed invention may be made as come within the scope ot' the claims.

In the accoinpanyinp, drawing, l have illustrated one complete er: i'nple of the physical embodiment oit the present invention constructed according to the best inode l have so liar devised tor the practical application ot the principles thereof, and in which,

Fin-ure 1 is a side View ot the entire .machine.

Figure 2 is a cross section thereo'li on the line 2-2 ot Figure 1, and

F ignre 3 is a side view ot the parts shown in Figure 2 talen in a direction opposite to that of Figure 1.

The machine is provided with a traine 16 for carrying` the various parts olI the mechanism, A large roll ot paper 11 is mounted at the rear end thereot` supported on a shaft 13, rotating in bearings on arm 111, rigid with the trame 10. A support l2 is integral The vpaper is unwound in` a sheet 16, which is ted past 'Feed roll 17 on to a bed roll 18, past per- Foratinn' roll 19, slitters 20 and feed roll 21. The operation ot perforating and slitting' are described in the application above iden-- tilied. The sheet 16 is then rewound upon core spindle 22. (lore 22 is similar to cores 22 and 22". They have squared ends 23, adapted to be received in a clutch 24, ripfid with shaift 25 which is rotntableby pulley7 26.

`rlhe shaft rotates on hall bearings 2T, carried in cylinders 26 on thc ends ot arms 29 ot core spindle :trame 66., rigid with trame shalt 31, which is rigid with a similarV trame B2. having' arms 29 themen. terminating in cylindrical boxes 3?. The boxes house a center 3l.' adapted to he received in the end oli the core spindle and integral with a shaft 35 and a cone 236. The cone bears against ball hearings 37 in cup urged invfardlyby spring- 39. The extreme inward movement of the pointed member 134: is limited by collar 40 on shaft 35. the rotation ot' pulley 26, clutch 24 is vrotated, as is also the core spindle.v The spindle may be removed from clutch24: by withdrawingcenter 341- slightly.

rllhe ball bearing structure minimizes the 'friction produced in moving pulley 26, the structure associated with the center contributing` to this effect, as the cup and cone are slidable in the box and held forward by the spring. The ball bearings redncingthe triction caused by the weight of the paper and the spindles and also the end thrust ol'4 the spring.

Pulley 26 is rot-ated by belt 41, running on pulley l2, adjustable by nut 43 in slot 4:11-, on frame 11). extends downwardly to pulley'45, then up- .variflly to pulley L16. lnorder to adjust 'the Atric ional action ot' the upper stretch of belt el-i on core spindle pulley 26, an adjuster is provided. lt consistsl oft a sheave 47, rotatable on a pivot t8 running thru vthe end of arm -l-S), which has limited rotatory movement on pivotr 50, carried in a support 51, integr-.il with an upper extension 52 of the `frame. 'llo the eind ot pivot d8, link 53 is secured by nut and its lowermost end has pin 55 extending' thru it and crank 56, rigid with shaftk 57, 'from which arm 5S extends upwardly adjacent side frame 10 having slot 59 therein, arm 58 being secured in proper adjustment by bolt 60 on which wing` nut 6l is rotated, bolt 60 extending thru slot 59.

The operator, by moving` arm St-o either side, alters the eleva-tion of sheave 47 and regulates the degree of depression thereof upon belt 41. A lgreater depression of the belt results in a greater amountv of drive, thereby on pulley 26 and produces a greater tensioning action on the paper being rewound on the core spindle. The minimizing ot ifriction in the rotatingv ol' the spindle perinits a nieety of adjustment between` the 'frictional drive upon pulley 26 and the tensioning ot the paper on the core spindle, so that danger of breaking` the very fragile stretches n ot paper is eliminated. y

il.. proper tension is maintained on belt 41 hy pulley 416 which is urged upwardly by lever 62 rotating on pivot 63, securedto side 10. Spring; 64; has one end secured tothe side trame at 65 and the other at 66to' lever 62, and the tension of spring 641-, is transmitted thru pulley 1-6 to belt d'1., `Power is applied to pulley 45 thru shaft 67 running' thru leg 68 ofthe frame and rigid with sheave 69, on which moves b'elt 70,.ru`nin to dead roll in Figure 1. explained in the above identilied patent, power is transmitted originally'to shaft 72, rigid with bed roll 18 and pulley 71 is thus rotated. Gear 73, rigidwith shaft From pulley 4t2 the belt pulley 71, shown in dotted lines 72 operates thru gear 74 to rotate slitters 20, and gear 74 operates thru gear 75 to rotate perforating roll 19.

When the core spindle has been so rotated that the roll rewound thereon has attained a desired diameter, an attendant lifts up on handle 76, on lever 77, rotatable on shaft 3l and causes pawl 78, secured to level' 77 by pin 79, to engage with shoulder 8O on disc 81, rigid with shaft 31, to move forwardly. bhoulders 80-80 and 80 are spaced equal distances circumferentially on disc 81.

Simultaneously with the upward movement of handle 76, dog 82 moves downwardly and contacts with cam 83 of arm 84 extending thru side wall 10 and rigid with arm 85, and catch 86, to move catch 86 downwardly and disengage it from a lug 87. Lugs 87 are three in number and rigid with cylindrical boxes 33. The downward movement of catch 86 releases the lug and permits pawl 78, which then engages with shouder 80, to rotate the gear spindle frame, thus positioning another spindle in position for' rewinding.

As the spindle is moved into proper position for` rewinding, another lug 87 wipes past an arm of bell crank 88, the upper limit of movement of said arm being determined by stop 89, contacting therewith. the stop being rigid with side frame l0. Bell crank 88 is urged upwardly normally, as is also catch 86, by reason of the tension of spring 90, secured to eyes 91 and 92. Vhen dog 82 wipes past cam 83 at the lowermost point of movement of the cam, the cam is then freed to return to its uppermost position, which is determined by stop 93. Catch 86 being rigid with cam 83 is also restored to its normal uppermost position, in whichit is operative to engage cam 87, which wipes past the arm of bell crank 88.

It will be noted that the rotation of the core spindle frames is clockwise, as viewed in Figure l, and the upward movement of pulley 26 necessitates a deflection of belt 4l thereabove. This movement is permitted by the compensating action of pulley 46, which moves downward against the tension of spring 30. When the 'next succeeding pulley 36y is properly positioned, pulley 46 is restored to the position shown in Figure l. The advancement of the core vspindle 'frame and the securing thereo'l in proper position is therefore accomplished by the movement merely of one hand actuating handle 76. The lowermost core spindle, namely core spindle 22, contacts with rolls 93 on shaft 94, rotatable in paste trough 95. This provides a convenient means for applying paste to the core spindle. Wheel 96 is provided rigid with shaft 94 for rotating rolls 93.

When a core spindle is swung upwardly from the trough. it has had the necessary paste applied to it by pasting rolls 93. After the newly pasted core comes in contact with the paper bands, the machine may be stopped and the paper between the completed rolls and newly pasted cores may be torn by hand. The paper is then wound on the newly supplied core.

As is apparent from a consideration of Figure 3, wheel 96, handle 76, and arm 58, are within convenient reach, the lowermost limit of position of lever 77 being determined by stop 97.

I claim:

l. The combination of a plurality oi pulleys, a belt runing over said pulleys, a plurality of core spindle pulleys, means carryingsaid last named pulleys, means supporting said irst named pulleys, and adjusting means cooperating with said belt for deflecti .ing said belt to a greater or lesser extent to engage one of said core spindle pulleys.

2. The combination of a frame, a plurality of pulleys carried thereby, a belt running over said pulleys, a plurality of core spindle pulleys, means carrying said last named pulleys, an adjustor pulley, means for altering the position yof said adjustor pulley whereby it deiiects said belt to a greater or less degree to exert a greater or less frictional drive on one of said core spindle pulleys.

3. The combination of a frame, a plurality of pulleys carried thereby, triangularly positioned, a belt running over` one of said pulleys, a plurality of core spindle pulleys, means carrying said last named pulleys operable to position one of said last named pulleys, adjacent a stretch or said belt, an adjustor-pulley, and means for altering the lposition of said adjustor pulley to produce a greater or lesser frictional drive of said belt on one of said core spindle pulleys.

4. The combination of a frame, a plurality of pulleys carried thereby, a belt running over one of said pulleys, a plurality of core spindle pulleys, an adjusting pulley contacting with said belt and operable to deflect said belt against one of said core spindle pulleys, means Yfor varying the adjustment of said adjustinoF pulley, and means for securing said pulley in adjusted position.

5. The combination of a frame, a plurality of pulleys carried thereby, a belt running over said pulleys, a plurality of core spindle pulleys, an adjusting pulley, a pivot for said adjusting pulley, an arm carrying said adjusting pulley, said arm being pivoted to said frame, a link secured to said pivot, and means for varying the position of said link to vary the position of said pulley, whereby a greater or lesser frictional drive is exerted upon one of said core spindle pulleys.

6. The combination of a' frame, a'v pluralityof pulleys carried thereby, abe'lt running over saidpulleys, a plurality of core spindle pulleys, means carrying said last named pulleys, anadjusting pulley, means securing said pulley for revolution about a point on said frame, a link, `an arm pivoted to Isaid link, meanssecured "to said arm'and run'- ning transversely 'thru said frame for securing said arm, said link andsaid pulley in diversepositions, whereby said pulley cooperates'witli said'fbelt for exerting a greater or lesser frietional drive upon-one of said y core spindle pulleys.

'y leys, means supporting said pulleys, a belt running over"said pulleys, a plurality of core spindles,` means carrying said Vcore spindles and supporting said core spindles for rotation, a plurality of core spindle pulleys 4carried by saidmeans cooperating to rotate said core spindles, a manually operable lever,` automatic means actu'able by Said manually operable lever to -vary the position .ot saidV core spindles, and secure said core spindles'in diverse positions,v and means for varying the frictional drive vof lsaid belt 'upon one ofsaidcore spindle pulleys.

19'. lThe combination of a plurality of pulleys, means supporting said pulleys, fa belt running over said pulleys', aicore'spindle, a plurality of ball bearings, means coo erating With-saidfball `bearings and sai vcore 'spindle `for supporting said *core spindles for rotation,la`core spindle pulley and means for v varying the frictional `drive of said belt upon said core spindle pulley.

l0. 'The combination of a'plurality of'pulleys, a belt running over said pulleys, means supporting said pulleys, a pluralityot'core spindles; a plurality of ball bearings, meansl cooperatingwvithsa-id ball bearings andsaid 4spindles for supporting' said spindles for rotation, a plurality of core spindle pulleys, y'each of said'piilleys cooperating With-one of said spindles for rotation thereof, and means cooperating with saidl belt lforI varying rthe lfric'ti'on'al drive ol'fsaid belt on one-of` said core spindle pulleys. f v

1l. The combination of a plurality of spindles, a pair oi" frames supporting said spindles for rotation, a shaft carrying` said frames, means supporting said sliait 'for 'iotation, a ratchet dise on said shaft, amaiiu- -ally operable levery rotatably mounted 'on vsaid shaft, a pavvl on Saidlever adapted to operate saidy disc on l'the movement of said j lever 4in one direction to .rotate saidl dise, a

plurality of lugs on one of saidfr'ames,

means permitting passage of said lugs'in one' direction on the rotation of` said vshaft by said lever and operative to prevent reverse movement of said lugs, ineans cooperating With said lugs to prevent further advancementY thereof, a dog carriedfbysaid lever, and means cooperating with said dog and operativeupon movement of said 'lever to release said last mentioned means, `whereby said shaft maybe' further rotated.

"Iiitestimoiiytliat I claim the'foregoingv I have hereunto set my liand 'at Green'zBay,

inthe county ofBi'oWnand State of-Wiscousin.

` Louis A. sriniifiiii.. 

